File extension Details of CPL, CPI, REG, DVD, DSS, DRV, DMP, DESKLINK, KEY

Name:	CPL
File Type:	Windows Control Panel
Popularity:	5
Category:	system
File Description:	Control panel, such as Displays, Mouse, Sound, or Networking, used by the Windows operating system; stored in the "Windows\ System" folder and are loaded automatically when the Windows Control Panel is opened. Since CPL files are referenced by the Windows operating system, they should not be opened manually.
Open Programs:	Windows Referenced by the Windows operating system

Name:	CPI
File Type:	Codepage Information File
Popularity:	3
Category:	system
File Description:	Stores keyboard mapping and full screen font settings for MS-DOS and Windows; contains embedded representations of the character glyphs that represent standard fonts; may be modified to suit different languages.
Open Programs:	Windows Referenced by Microsoft Windows

Name:	REG
File Type:	Registry File
Popularity:	3
Category:	system
File Description:	Updates the Windows Registry when run; custom REG files can be created to alter different aspects of Windows; to create your own registry update file, follow these steps: Launch Regedit (From the start menu, select Run, type "Regedit") Select the section of the registry you are interested in modifying From the File menu, select Export Choose "Selected Branch" from the Export Range option at the bottom of the window. Save the file as a ".reg" file. NOTE: Manually updating the Windows registry is an advanced process and should only be performed if you know exactly what you are doing; incorrect registry updates may render Windows inoperable.
Open Programs:	Windows Edit with Regedit Runs itself when the corresponding application is run

Name:	DVD
File Type:	DOS Device Driver   (Most common)
Popularity:	3
Category:	system
File Description:	Driver for devices used with MS-DOS; enables communication between the operating system and the hardware device; may be preinstalled with Windows or may need to be installed from a disc that comes with the hardware. Files ending with ".DVD" are not DVD movies -- see .VOB instead.
Open Programs:	Windows Microsoft DOS

Name:	DSS
File Type:	DCC Active Designer File
Popularity:	3
Category:	system
File Description:	Windows screensaver file; used by Windows to run a screensaver animation or movie when the computer is inactive for a certain amount of time (which can be set by the user); adds additional screensavers to the list available in the Screensaver tab of the Displays control panel.
Open Programs:	Windows Used by the Windows Screensaver

Name:	DRV
File Type:	Device Driver
Popularity:	5
Category:	system
File Description:	Driver file that allows certain hardware devices (both internal and external) to be recognized and used by the computer; contains commands that enable communication between the computer and hardware devices. NOTE: Do not open an unknown DRV file, as it may be infected with a virus.
Open Programs:	Windows Should not be manually opened or edited

Name:	DMP
File Type:	Windows Memory Dump
Popularity:	5
Category:	system
File Description:	Data "dumped" from a program's memory space; often created when a program has an error or crashes; may also be saved by the program "Savedump.exe" on the first reboot after a crash; usually named "Memory.dmp." Windows memory dump files may be used for troubleshooting system errors and other problems; however, they can take up a significant amount of space and may often be deleted.
Open Programs:	Windows Microsoft Dumpflop utility Windows Debug Tools (windbg.exe) Windows Kernel Debug (kd.exe)

Name:	DESKLINK
File Type:	Desktop Shortcut
Popularity:	3
Category:	system
File Description:	Shortcut or "link" file created by right-clicking a file or folder in Windows and selecting Send To->Desktop as Shortcut; serves as an alias of the original file
Open Programs:	Windows Microsoft Windows 95 or later

Name:	KEY
File Type:	Security Key   (Most common)
Popularity:	5
Category:	system
File Description:	Contains registration information or a security code for a software program; often created when the program is registered; typically stored in the program's application folder or the system preferences folder.
Open Programs:	Mac OS Various programs that save registration information Windows Various programs that save registration information

Name:	KBD
File Type:	Keyboard Layout Script
Popularity:	3
Category:	system
File Description:	Alternative keyboard layout generated by a custom keyboard generation program; modifies which characters are entered by each key of the keyboard; allows users to switch between multiple key mappings.
Open Programs:	Windows IDM Computer Solutions UltraEdit Janko's Keyboard Generator